Rolling device and method capable of replacing blanks of different specifications

• Main Authors: YANG HONGZHI, HU ZUOYU, DONG SHIPENG, MA XUEFENG, WANG XUEYUAN, SHI JINQING, YIN XIUGANG
• Format: Patent
• Language: Chinese; English
• Published: 08.10.2021
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention provides a rolling device and method capable of replacing blanks of different specifications. The rolling device comprises a first rolling mill, a second rolling mill, a third rolling mill, a fourth rolling mill, a fifth rolling mill, a sixth rolling mill and a seventh rolling mill which are sequentially arranged. The different rolling mills have hole patterns of different types, square blanks of different specifications are rolled through the rolling device, the rolling sizes and the extension coefficients of first rolling treatment, second rolling treatment, third rolling treatment and fourth rolling treatment are adjusted, and it is guaranteed that the size precision and the surface quality of bars meet the technical requirements. The step pitch of a walking beam of a heating furnace is not adjusted and a rolling mill is not replaced when a 240mm square blank and a 200mm square blank are switched, so that the switching downtime is shortened, the bar rolling capacity is improved, and the produ